G 415 Technical Rule - Standard 09/2015 -PDF file-

Design, Construction and Operation of Biogas Pipeworkwith an Operating Pressure up to and including 5 bar

62,03 €*
  • DVGW
  • 18 pages
  • available as PDF only
  • 2nd edition 2015
  • 1
  • 1
  • 510429
ST

62,03 €*

This DVGW Standard can be used as a guideline as it summarises the minimum requirements specified in the DVGW Sets of Rules that shall be observed by design firms, specialist contractors, operators and the involved authorities during the design, construction and operation of gas pipework for the transmission of untreated or partially treated biogas. The clause on Design also draws attention to the fact that the pertinent approvals and / or permissions shall be obtained prior to the start of construction of pipework planned to cross e. g. water bodies, roads and railways.

Gases produced by fermentation processes such as e. g. biogases obtained from agriculture that are generally used to meet internal requirements and / or to power decentralised systems such as e. g. combined heat and power plants, are untreated or partially treated biogases that are not considered gases in accordance with DVGW Standard G 260.

Nonetheless, the documents that form part of the DVGW Set of Rules that are referred to in this Standard shall also be applied to pipelines that transmit untreated or partially treated biogas.
Foreword

1 Scope

2 Normative references

3 Terms, symbols, units and abbreviations

3.1 Biogas

4 Design

4.1 General

4.2 Approval / permission procedure

4.3 Pipeline routing

4.4 Material

4.5 Entry into buildings

5 Construction

5.1 General

5.2 Personnel requirements

5.2.1 Skilled personnel, qualified persons and experts

5.2.2 Pipework contractors

5.3 Transport and storage of pipes

5.4 Pipe and pipeline component inspection

5.5 Depth of cover

5.6 Pipe trenches and excavation pits

5.7 Pipework connections

5.7.1 General

5.7.2 Welded joints

5.7.3 Compression joints and press-fit assemblies

5.7.4 Flanged joints

5.8 Pipe bends ? elastic bending

5.9 Gas pipework installation

5.10 Backfilling

5.11 Trenchless laying methods

5.12 Installation of valves and fittings

5.13 Marking

6 Pressure test

7 Acceptance certificate

8 Commissioning

9 Operation

9.1 General

9.2 Personnel requirements

9.3 Maintenance

9.3.1 Condensate trap emptying

9.3.2 Pigging of pipeline sections

9.3.3 Leak testing of connections

9.4 Stand-by service

10 Documentation

10.1 Construction

10.2 Operation

Annex A (informative) ? Typical condensate trap

Annex B (informative) ? Overview of Set of Rules